<!DOCTYPE html>
<html>
<body>
<canvas id="c" width="200" height="100">
</canvas>
<script>
var ctx = document.getElementById("c").getContext("2d");
ctx.save();
ctx.save();
ctx.rect(0,0, 1,1);
ctx.restore();
ctx.fill('evenodd');
ctx.restore();
ctx.lineTo(10, 0);
</script>
</body>
</html>
